Home / 66,364-144,389

Finding the Third Proportional to 66,364 and 144,389

Calculator

Solution

The third proportional to 66,364 and 144,389 is: 314,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364 : 144,389 = 144,389 : x
  2. Step 2: Convert to fraction form
    66,364/144,389 = 144,389/x
  3. Step 3: Cross multiply
    66,364x = 144,389 × 144,389
  4. Step 4: Simplify right side
    66,364x = 20,848,183,321
  5. Step 5: Solve for x
    x = 20,848,183,321/66,364
  6. Step 6: Final answer
    x = 314,148.99

Related Problems

Find third proportional to 33,182 and 72,194.50
Half scale
Find third proportional to 132,728 and 288,778
Double scale
Find third proportional to 66,366 and 144,393
Similar ratio
Find third proportional to 99,546 and 216,583.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.